The experiment aimed to analyze the main components of flavonoids from corn silk by using color reaction, thin-layer chromatography(TLC) and ultraviolet(UV) spectral scanning.
采用颜色反应、薄层层析与紫外扫描光谱三种方法对玉米须黄酮类化合物进行初步分析。
Methods to isolate the constituents by reverse phase chromatography, and characterize their structures by the analysis of chemical property and spectral data.
方法利用反相层析的方法进行分离纯化，根据化合物的化学性质与光谱数据鉴定其结构。
Methods:The isolation and purification were carried out by repeated silica gel column chromatography, and the chemical structures were determined by physicochemical properties and spectral analysis.
方法：采用反复硅胶柱色谱、葡聚糖凝胶色谱等分离纯化，通过理化常数和波谱分析鉴定其化学结构。
Methods DEAE-cellulose and gel-filtration chromatography were used to isolate and purify the polysaccharides whose structures were characterized by using chemical and spectral methods.
方法采用DEAE -纤维素柱色谱和凝胶渗透色谱进行分离纯化，化学和光谱方法分析其结构特征。
Methods Compounds were isolated by silica column chromatography, and their structures were elucidated by spectral methods.
方法用硅胶柱层析进行分离，用有机波谱学的方法进行结构鉴定。
Methods: the compounds were isolated by silica gel column chromatography, and their structures were elucidated by spectral methods.
方法：利用硅胶柱色谱法对化合物进行分离，运用波谱方法确定结构。
METHODS ? The isolation and purification was performed by silica gel column chromatography and the structures were identified by spectral analysis.
用硅胶柱层析法分离纯化，用光谱法进行结构鉴定。
Multicomponent spectral correlative chromatography is proposed based on orthogonal projection and correlative chromatography.
基于正交投影理论和相关色谱方法提出多组分光谱相关色谱。
Methods The compounds were isolated by silica gel, ODS, and macroporous resin column chromatography and their structures were determined by means of spectral analysis.
方法利用正相、反相硅胶柱和大孔树脂柱色谱分离，并通过波谱技术进行结构鉴定。
Method the compounds were isolated by column chromatography and purified by recrystallization and the structures were identified by NMR spectral data and other methods.
方法通过反复柱色谱分离和重结晶纯化，并利用核磁共振波谱技术进行结构鉴定。
The standard spectra of the related substances and their spectral correlative chromatography were developed and used in identification by calculating correlation coefficients.
通过计算莫西沙星有关物质色谱峰的光谱与标准光谱库中光谱的相似系数，对有关物质进行识别。
METHODS the compounds were isolated by acid and alkali treatment and column chromatography, and the structures are identified by physicochemical properties and spectral data.
方法利用酸碱处理及硅胶柱色谱进行分离，通过理化性质和波谱数据鉴定结构。
MethodsThe chemical constituents were isolated and purified with silica gel chromatography, their structures were determined by spectral analysis and chemical evidence.
方法利用各种色谱技术进行分离纯化，根据化合物的理化性质和光谱数据进行结构鉴定。
Method: Compounds were separated by solvent extraction and column chromatography with silica gel and structures were elucidated by chemical evidence and spectral analysis.
方法：溶剂提取和硅胶柱色谱法进行分离，理化性质和光谱数据鉴定其结构。
In chapter 2, multicomponent spectral correlative chromatography was proposed as a new method based on orthogonal projection and correlative chromatogram.
第二章基于相同的化学物质具有相同的光谱，在单组分光谱相关色谱的基础上，提出了多组分光谱相关色谱的新方法。
Methods: Column chromatography was used in the isolation procedure. The structures of isolated compounds were elucidated by spectral data.
方法：柱色谱法分离其成分，利用光谱数据确定其化学结构。
Methods DEAE-Cellulose and gel-filtration chromatography were used to isolate and purify the polysaccharides, whose structures were characterized by chemical and spectral methods.
方法采用DEAE -纤维素柱色谱和凝胶渗透色谱分离纯化，化学和光谱方法分析其结构特征。
The components were separated and identified by gas chromatography mass spectrometry and elucidated on the standard mass spectral data.
以气质联用对化学组分进行分离和鉴定，通过标准图谱对照确定化合物名称。
METHODS Chromatography was used to isolate and purify chemical constituents, and their structures were elucidated based on spectral evidence together with physiochemical properties.
方法利用硅胶、凝胶等色谱技术分离纯化化学成分，通过理化性质和波谱数据确证其结构。
METHODS Compound was iso - lated by means of chromatography on silica gel and recrystallization, whose structure was elucidated by spectral analysis.
方法借助于硅胶柱层析和重结晶进行分离，根据化合物光谱数据鉴定其结构。
METHODS:Isolation and identification were carried out by using various chromatography techniques and spectral methods.
方法：采用了各种层析分离技术，分得单体，经理化常数和光谱解析确定结构。
METHODS DEAE-cellulose and gel-filtration chromatography were used to isolate and purify the polysaccharide whose structure was characterized by using chemical and spectral methods.
方法采用DEAE-纤维素柱色谱和凝胶渗透色谱进行分离纯化，化学及光谱方法进行结构分析，并进行免疫及降血糖药理活性测试。
METHODS DEAE-cellulose and gel-filtration chromatography were used to isolate and purify the polysaccharide whose structure was characterized by using chemical and spectral methods.
方法采用DEAE-纤维素柱色谱和凝胶渗透色谱进行分离纯化，化学及光谱方法进行结构分析，并进行免疫及降血糖药理活性测试。
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